|Table of Contents|

Identification and Biological Characteristics of Pathogens Causing Damping-off Disease in Introduced Cherry Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年7
Page:
92-98
Research Field:
Publishing date:

Info

Title:
Identification and Biological Characteristics of Pathogens Causing Damping-off Disease in Introduced Cherry Seedlings
Author(s):
QUAN Yan1; 2; ZHANG Liyan1; ZHAO Jun1; LIU Xueying1; LIU Zhijing1; BAO Tingting3
(1.College of Forestry，Inner Mongolia Agricultural University，Hohhot，Inner Mongolia 010019；2.College of Forestry，Beijing Forestry University，Beijing 100083；3.Hohhot Garden Plant Protection Station，Hohhot，Inner Mongolia 010010)
Keywords:
cherry damping-off; Alternaria tenuissima; biological characteristics; new host record; arid area; seedling introduction
PACS:
S436.412
DOI:
10.11937/bfyy.20253539
Abstract:
Taking introduced cherry seedlings as test materials,this study adopted comprehensive methods including pathogen isolation and identification,pathogenicity determination,biological characteristic analysis and vegetative compatibility group (VCG) structure analysis to investigate the pathogenic effect of Alternaria tenuissima on the damping-off disease of introduced cherry seedlings,in order to provide a reference for the prevention and control of seedling damping-off disease and the efficient utilization of resources in the introduction and cultivation of cherries in arid areas.The results showed that,through the combined identification of morphology and molecular biology,the pathogen causing cherry damping-off disease was identified as Alternaria tenuissima,which was the first report of this pathogen on cherries in this study; the results of pathogenicity determination confirmed that this pathogen was pathogenic; the analysis of biological characteristics indicated that the optimal growth temperature of this fungus was 25 ℃ and the optimal pH was 6.0; the analysis of vegetative compatibility group structure screened out the dominant group G1 and 13 dominant strains such as At-c-1,At-c-2 and At-c-3.

References:

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Last Update: 2026-04-14